Nasturtiums Seeds for sale, plants, species and Nurseries. Nasturtiums are the common name for some Tropaeolum Majus species. The common Nasturtium is well known and is widely used as a garden plant, while the flowers and leaves are sometimes used in cooking. Nasturtiums are said to be pest repellent and will happily self seed once established. Nasturtiums will perform well as climbing plants given a frame to climb on, they also make a good ground cover. Mail Order Nurseries, Specialist Nurseries,Retail Nurseries, Wholesale Nurseries, Garden Centers.